EP2220034A1 - Aromatic aldimines and polyurethane compositions which contain aldimine - Google Patents
Aromatic aldimines and polyurethane compositions which contain aldimineInfo
- Publication number
- EP2220034A1 EP2220034A1 EP08849259A EP08849259A EP2220034A1 EP 2220034 A1 EP2220034 A1 EP 2220034A1 EP 08849259 A EP08849259 A EP 08849259A EP 08849259 A EP08849259 A EP 08849259A EP 2220034 A1 EP2220034 A1 EP 2220034A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- dialdimine
- aromatic
- polyisocyanate
- formula
- room temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 243
- -1 Aromatic aldimines Chemical class 0.000 title claims abstract description 53
- 239000004814 polyurethane Substances 0.000 title claims description 40
- 229920002635 polyurethane Polymers 0.000 title claims description 40
- 150000004705 aldimines Chemical class 0.000 title description 12
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 claims abstract description 69
- 125000003118 aryl group Chemical group 0.000 claims abstract description 57
- 239000007788 liquid Substances 0.000 claims abstract description 44
- 229920000768 polyamine Polymers 0.000 claims abstract description 17
- 239000005056 polyisocyanate Substances 0.000 claims description 59
- 229920001228 polyisocyanate Polymers 0.000 claims description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 41
- 229920000642 polymer Polymers 0.000 claims description 39
- 229920005862 polyol Polymers 0.000 claims description 36
- 150000003077 polyols Chemical class 0.000 claims description 36
- 239000000758 substrate Substances 0.000 claims description 30
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 claims description 28
- 238000006243 chemical reaction Methods 0.000 claims description 28
- 150000001875 compounds Chemical class 0.000 claims description 28
- 239000000853 adhesive Substances 0.000 claims description 25
- 230000001070 adhesive effect Effects 0.000 claims description 25
- CBCKQZAAMUWICA-UHFFFAOYSA-N 1,4-phenylenediamine Chemical compound NC1=CC=C(N)C=C1 CBCKQZAAMUWICA-UHFFFAOYSA-N 0.000 claims description 23
- 125000004432 carbon atom Chemical group C* 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 20
- 239000003054 catalyst Substances 0.000 claims description 19
- 150000004985 diamines Chemical class 0.000 claims description 18
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 claims description 18
- 238000002156 mixing Methods 0.000 claims description 16
- 239000000565 sealant Substances 0.000 claims description 16
- 150000004984 aromatic diamines Chemical class 0.000 claims description 14
- 239000012948 isocyanate Substances 0.000 claims description 14
- 150000002513 isocyanates Chemical class 0.000 claims description 12
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 claims description 12
- 239000005058 Isophorone diisocyanate Substances 0.000 claims description 11
- 229910052698 phosphorus Inorganic materials 0.000 claims description 11
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 11
- 239000005057 Hexamethylene diisocyanate Substances 0.000 claims description 10
- 238000000576 coating method Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 10
- 239000004215 Carbon black (E152) Substances 0.000 claims description 9
- 150000002148 esters Chemical class 0.000 claims description 9
- 229930195733 hydrocarbon Natural products 0.000 claims description 9
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 claims description 9
- 229960004889 salicylic acid Drugs 0.000 claims description 9
- IBOFVQJTBBUKMU-UHFFFAOYSA-N 4,4'-methylene-bis-(2-chloroaniline) Chemical compound C1=C(Cl)C(N)=CC=C1CC1=CC=C(N)C(Cl)=C1 IBOFVQJTBBUKMU-UHFFFAOYSA-N 0.000 claims description 8
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 8
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims description 8
- 125000005442 diisocyanate group Chemical group 0.000 claims description 8
- WZCQRUWWHSTZEM-UHFFFAOYSA-N 1,3-phenylenediamine Chemical compound NC1=CC=CC(N)=C1 WZCQRUWWHSTZEM-UHFFFAOYSA-N 0.000 claims description 7
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 7
- 239000003973 paint Substances 0.000 claims description 7
- 239000013615 primer Substances 0.000 claims description 7
- 239000002987 primer (paints) Substances 0.000 claims description 7
- 150000001414 amino alcohols Chemical class 0.000 claims description 6
- 125000005842 heteroatom Chemical group 0.000 claims description 6
- YBRVSVVVWCFQMG-UHFFFAOYSA-N 4,4'-diaminodiphenylmethane Chemical compound C1=CC(N)=CC=C1CC1=CC=C(N)C=C1 YBRVSVVVWCFQMG-UHFFFAOYSA-N 0.000 claims description 5
- DGRGLKZMKWPMOH-UHFFFAOYSA-N 4-methylbenzene-1,2-diamine Chemical compound CC1=CC=C(N)C(N)=C1 DGRGLKZMKWPMOH-UHFFFAOYSA-N 0.000 claims description 5
- 125000000217 alkyl group Chemical group 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 5
- 125000004122 cyclic group Chemical group 0.000 claims description 5
- 239000006260 foam Substances 0.000 claims description 5
- 239000004922 lacquer Substances 0.000 claims description 5
- 229920006295 polythiol Polymers 0.000 claims description 5
- 238000004382 potting Methods 0.000 claims description 5
- RLYCRLGLCUXUPO-UHFFFAOYSA-N 2,6-diaminotoluene Chemical compound CC1=C(N)C=CC=C1N RLYCRLGLCUXUPO-UHFFFAOYSA-N 0.000 claims description 4
- OHKOAJUTRVTYSW-UHFFFAOYSA-N 2-[(2-aminophenyl)methyl]aniline Chemical compound NC1=CC=CC=C1CC1=CC=CC=C1N OHKOAJUTRVTYSW-UHFFFAOYSA-N 0.000 claims description 4
- FZZMTSNZRBFGGU-UHFFFAOYSA-N 2-chloro-7-fluoroquinazolin-4-amine Chemical compound FC1=CC=C2C(N)=NC(Cl)=NC2=C1 FZZMTSNZRBFGGU-UHFFFAOYSA-N 0.000 claims description 4
- CNPURSDMOWDNOQ-UHFFFAOYSA-N 4-methoxy-7h-pyrrolo[2,3-d]pyrimidin-2-amine Chemical compound COC1=NC(N)=NC2=C1C=CN2 CNPURSDMOWDNOQ-UHFFFAOYSA-N 0.000 claims description 4
- 239000005711 Benzoic acid Substances 0.000 claims description 4
- YIDAJHZSLYLUJW-UHFFFAOYSA-N [3-[4-[(3-dodecanoyloxy-2,2-dimethylpropylidene)amino]phenyl]imino-2,2-dimethylpropyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)OCC(C)(C)C=NC1=CC=C(N=CC(C)(C)COC(=O)CCCCCCCCCCC)C=C1 YIDAJHZSLYLUJW-UHFFFAOYSA-N 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 235000010233 benzoic acid Nutrition 0.000 claims description 4
- 150000001622 bismuth compounds Chemical class 0.000 claims description 4
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 4
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- VOZKAJLKRJDJLL-UHFFFAOYSA-N 2,4-diaminotoluene Chemical compound CC1=CC=C(N)C=C1N VOZKAJLKRJDJLL-UHFFFAOYSA-N 0.000 claims description 3
- 241001112258 Moca Species 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 150000003606 tin compounds Chemical class 0.000 claims description 3
- 229940008841 1,6-hexamethylene diisocyanate Drugs 0.000 claims description 2
- BSYVFGQQLJNJJG-UHFFFAOYSA-N 2-[2-(2-aminophenyl)sulfanylethylsulfanyl]aniline Chemical compound NC1=CC=CC=C1SCCSC1=CC=CC=C1N BSYVFGQQLJNJJG-UHFFFAOYSA-N 0.000 claims description 2
- YPACMOORZSDQDQ-UHFFFAOYSA-N 3-(4-aminobenzoyl)oxypropyl 4-aminobenzoate Chemical compound C1=CC(N)=CC=C1C(=O)OCCCOC(=O)C1=CC=C(N)C=C1 YPACMOORZSDQDQ-UHFFFAOYSA-N 0.000 claims description 2
- WECDUOXQLAIPQW-UHFFFAOYSA-N 4,4'-Methylene bis(2-methylaniline) Chemical compound C1=C(N)C(C)=CC(CC=2C=C(C)C(N)=CC=2)=C1 WECDUOXQLAIPQW-UHFFFAOYSA-N 0.000 claims description 2
- AQSCPJAJQCQDRP-UHFFFAOYSA-N 4-amino-2-[4-(5-amino-2-carboxyphenyl)butyl]benzoic acid Chemical compound NC1=CC=C(C(O)=O)C(CCCCC=2C(=CC=C(N)C=2)C(O)=O)=C1 AQSCPJAJQCQDRP-UHFFFAOYSA-N 0.000 claims description 2
- HLDUVPFXLWEZOG-UHFFFAOYSA-N 4-tert-butyl-6-methylbenzene-1,3-diamine Chemical compound CC1=CC(C(C)(C)C)=C(N)C=C1N HLDUVPFXLWEZOG-UHFFFAOYSA-N 0.000 claims description 2
- 238000004026 adhesive bonding Methods 0.000 claims description 2
- 125000003172 aldehyde group Chemical group 0.000 claims description 2
- 125000003710 aryl alkyl group Chemical group 0.000 claims description 2
- 125000002837 carbocyclic group Chemical group 0.000 claims description 2
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 2
- 238000009408 flooring Methods 0.000 claims description 2
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims description 2
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims description 2
- 239000004753 textile Substances 0.000 claims description 2
- YXFVVABEGXRONW-UHFFFAOYSA-N toluene Substances CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 2
- RUELTTOHQODFPA-UHFFFAOYSA-N toluene 2,6-diisocyanate Chemical compound CC1=C(N=C=O)C=CC=C1N=C=O RUELTTOHQODFPA-UHFFFAOYSA-N 0.000 claims description 2
- QRUWUSOUUMPANJ-UHFFFAOYSA-N 2-amino-5-[(4-amino-3-carboxyphenyl)methyl]benzoic acid Chemical compound C1=C(C(O)=O)C(N)=CC=C1CC1=CC=C(N)C(C(O)=O)=C1 QRUWUSOUUMPANJ-UHFFFAOYSA-N 0.000 claims 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 claims 1
- 150000001412 amines Chemical class 0.000 abstract description 37
- 239000007787 solid Substances 0.000 abstract description 16
- 230000015572 biosynthetic process Effects 0.000 abstract description 7
- 230000005587 bubbling Effects 0.000 abstract 1
- 238000001723 curing Methods 0.000 description 37
- 150000001299 aldehydes Chemical class 0.000 description 36
- 230000000052 comparative effect Effects 0.000 description 24
- 238000003860 storage Methods 0.000 description 24
- 238000002844 melting Methods 0.000 description 23
- 230000009965 odorless effect Effects 0.000 description 20
- 238000012360 testing method Methods 0.000 description 18
- 230000008018 melting Effects 0.000 description 17
- 239000000126 substance Substances 0.000 description 15
- 125000003277 amino group Chemical group 0.000 description 13
- 229910052739 hydrogen Inorganic materials 0.000 description 13
- 238000006460 hydrolysis reaction Methods 0.000 description 13
- YRDQAIWXWUHXPQ-UHFFFAOYSA-N (2,2-dimethyl-3-oxopropyl) dodecanoate Chemical compound CCCCCCCCCCCC(=O)OCC(C)(C)C=O YRDQAIWXWUHXPQ-UHFFFAOYSA-N 0.000 description 12
- 239000002253 acid Substances 0.000 description 12
- 239000000654 additive Substances 0.000 description 12
- 229920001451 polypropylene glycol Polymers 0.000 description 12
- 238000002360 preparation method Methods 0.000 description 12
- 125000001931 aliphatic group Chemical group 0.000 description 11
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 10
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 9
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 9
- 230000007062 hydrolysis Effects 0.000 description 9
- 230000003301 hydrolyzing effect Effects 0.000 description 9
- 239000003921 oil Substances 0.000 description 9
- 235000019198 oils Nutrition 0.000 description 9
- 230000008646 thermal stress Effects 0.000 description 9
- 229910052799 carbon Inorganic materials 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 239000004743 Polypropylene Substances 0.000 description 7
- 150000001298 alcohols Chemical class 0.000 description 7
- 230000008901 benefit Effects 0.000 description 7
- 150000001735 carboxylic acids Chemical class 0.000 description 7
- 150000002009 diols Chemical class 0.000 description 7
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 7
- 229920000570 polyether Polymers 0.000 description 7
- 229920001155 polypropylene Polymers 0.000 description 7
- GQHTUMJGOHRCHB-UHFFFAOYSA-N 2,3,4,6,7,8,9,10-octahydropyrimido[1,2-a]azepine Chemical compound C1CCCCN2CCCN=C21 GQHTUMJGOHRCHB-UHFFFAOYSA-N 0.000 description 6
- ZVFDTKUVRCTHQE-UHFFFAOYSA-N Diisodecyl phthalate Chemical compound CC(C)CCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC(C)C ZVFDTKUVRCTHQE-UHFFFAOYSA-N 0.000 description 6
- 239000004721 Polyphenylene oxide Substances 0.000 description 6
- 102100034757 Thiol S-methyltransferase METTL7B Human genes 0.000 description 6
- 101710082490 Thiol S-methyltransferase METTL7B Proteins 0.000 description 6
- ZFMQKOWCDKKBIF-UHFFFAOYSA-N bis(3,5-difluorophenyl)phosphane Chemical compound FC1=CC(F)=CC(PC=2C=C(F)C=C(F)C=2)=C1 ZFMQKOWCDKKBIF-UHFFFAOYSA-N 0.000 description 6
- 239000000470 constituent Substances 0.000 description 6
- 229920001577 copolymer Polymers 0.000 description 6
- 239000011133 lead Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 235000019645 odor Nutrition 0.000 description 6
- 229920000728 polyester Polymers 0.000 description 6
- 238000005160 1H NMR spectroscopy Methods 0.000 description 5
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 5
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 5
- 150000007513 acids Chemical class 0.000 description 5
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 5
- 235000014113 dietary fatty acids Nutrition 0.000 description 5
- 229930195729 fatty acid Natural products 0.000 description 5
- 239000000194 fatty acid Substances 0.000 description 5
- 150000004665 fatty acids Chemical class 0.000 description 5
- PGYPOBZJRVSMDS-UHFFFAOYSA-N loperamide hydrochloride Chemical compound Cl.C=1C=CC=CC=1C(C=1C=CC=CC=1)(C(=O)N(C)C)CCN(CC1)CCC1(O)C1=CC=C(Cl)C=C1 PGYPOBZJRVSMDS-UHFFFAOYSA-N 0.000 description 5
- 239000004014 plasticizer Substances 0.000 description 5
- 239000004417 polycarbonate Substances 0.000 description 5
- 229920000515 polycarbonate Polymers 0.000 description 5
- 229920000573 polyethylene Polymers 0.000 description 5
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 5
- 150000003512 tertiary amines Chemical class 0.000 description 5
- BKUSIKGSPSFQAC-RRKCRQDMSA-N 2'-deoxyinosine-5'-diphosphate Chemical compound O1[C@H](CO[P@@](O)(=O)OP(O)(O)=O)[C@@H](O)C[C@@H]1N1C(NC=NC2=O)=C2N=C1 BKUSIKGSPSFQAC-RRKCRQDMSA-N 0.000 description 4
- 239000004971 Cross linker Substances 0.000 description 4
- 241000512897 Elaeis Species 0.000 description 4
- 235000001950 Elaeis guineensis Nutrition 0.000 description 4
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 4
- AMIMRNSIRUDHCM-UHFFFAOYSA-N Isopropylaldehyde Chemical compound CC(C)C=O AMIMRNSIRUDHCM-UHFFFAOYSA-N 0.000 description 4
- YZXBAPSDXZZRGB-DOFZRALJSA-N arachidonic acid Chemical compound CCCCC\C=C/C\C=C/C\C=C/C\C=C/CCCC(O)=O YZXBAPSDXZZRGB-DOFZRALJSA-N 0.000 description 4
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 4
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 4
- KEMQGTRYUADPNZ-UHFFFAOYSA-N heptadecanoic acid Chemical compound CCCCCCCCCCCCCCCCC(O)=O KEMQGTRYUADPNZ-UHFFFAOYSA-N 0.000 description 4
- VKOBVWXKNCXXDE-UHFFFAOYSA-N icosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCC(O)=O VKOBVWXKNCXXDE-UHFFFAOYSA-N 0.000 description 4
- 239000004615 ingredient Substances 0.000 description 4
- 239000000543 intermediate Substances 0.000 description 4
- 229920002521 macromolecule Polymers 0.000 description 4
- 150000002736 metal compounds Chemical class 0.000 description 4
- 239000012299 nitrogen atmosphere Substances 0.000 description 4
- SECPZKHBENQXJG-FPLPWBNLSA-N palmitoleic acid Chemical compound CCCCCC\C=C/CCCCCCCC(O)=O SECPZKHBENQXJG-FPLPWBNLSA-N 0.000 description 4
- 230000009257 reactivity Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 125000000467 secondary amino group Chemical group [H]N([*:1])[*:2] 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- TYFQFVWCELRYAO-UHFFFAOYSA-N suberic acid Chemical compound OC(=O)CCCCCCC(O)=O TYFQFVWCELRYAO-UHFFFAOYSA-N 0.000 description 4
- 150000005846 sugar alcohols Polymers 0.000 description 4
- 239000002562 thickening agent Substances 0.000 description 4
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N urea group Chemical group NC(=O)N XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 4
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 3
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical group OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- SJRJJKPEHAURKC-UHFFFAOYSA-N N-Methylmorpholine Chemical compound CN1CCOCC1 SJRJJKPEHAURKC-UHFFFAOYSA-N 0.000 description 3
- 229930040373 Paraformaldehyde Natural products 0.000 description 3
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 3
- 229920002396 Polyurea Polymers 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical compound ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 3
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 238000007792 addition Methods 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 150000007933 aliphatic carboxylic acids Chemical class 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 150000004982 aromatic amines Chemical class 0.000 description 3
- 239000002585 base Substances 0.000 description 3
- CMCJNODIWQEOAI-UHFFFAOYSA-N bis(2-butoxyethyl)phthalate Chemical compound CCCCOCCOC(=O)C1=CC=CC=C1C(=O)OCCOCCCC CMCJNODIWQEOAI-UHFFFAOYSA-N 0.000 description 3
- 239000012975 dibutyltin dilaurate Substances 0.000 description 3
- 230000032050 esterification Effects 0.000 description 3
- 238000005886 esterification reaction Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
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- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- CZDYPVPMEAXLPK-UHFFFAOYSA-N tetramethylsilane Chemical compound C[Si](C)(C)C CZDYPVPMEAXLPK-UHFFFAOYSA-N 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 150000003566 thiocarboxylic acids Chemical class 0.000 description 1
- 125000003396 thiol group Chemical group [H]S* 0.000 description 1
- 239000013008 thixotropic agent Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- IMFACGCPASFAPR-UHFFFAOYSA-N tributylamine Chemical compound CCCCN(CCCC)CCCC IMFACGCPASFAPR-UHFFFAOYSA-N 0.000 description 1
- 239000013638 trimer Substances 0.000 description 1
- KGLSETWPYVUTQX-UHFFFAOYSA-N tris(4-isocyanatophenoxy)-sulfanylidene-$l^{5}-phosphane Chemical compound C1=CC(N=C=O)=CC=C1OP(=S)(OC=1C=CC(=CC=1)N=C=O)OC1=CC=C(N=C=O)C=C1 KGLSETWPYVUTQX-UHFFFAOYSA-N 0.000 description 1
- VXYADVIJALMOEQ-UHFFFAOYSA-K tris(lactato)aluminium Chemical compound CC(O)C(=O)O[Al](OC(=O)C(C)O)OC(=O)C(C)O VXYADVIJALMOEQ-UHFFFAOYSA-K 0.000 description 1
- AVWRKZWQTYIKIY-UHFFFAOYSA-N urea-1-carboxylic acid Chemical compound NC(=O)NC(O)=O AVWRKZWQTYIKIY-UHFFFAOYSA-N 0.000 description 1
- 150000003672 ureas Chemical class 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- UKRDPEFKFJNXQM-UHFFFAOYSA-N vinylsilane Chemical class [SiH3]C=C UKRDPEFKFJNXQM-UHFFFAOYSA-N 0.000 description 1
- 239000003039 volatile agent Substances 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 239000000811 xylitol Substances 0.000 description 1
- HEBKCHPVOIAQTA-SCDXWVJYSA-N xylitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)CO HEBKCHPVOIAQTA-SCDXWVJYSA-N 0.000 description 1
- 235000010447 xylitol Nutrition 0.000 description 1
- 229960002675 xylitol Drugs 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- DJWUNCQRNNEAKC-UHFFFAOYSA-L zinc acetate Chemical compound [Zn+2].CC([O-])=O.CC([O-])=O DJWUNCQRNNEAKC-UHFFFAOYSA-L 0.000 description 1
- PZXFWBWBWODQCS-UHFFFAOYSA-L zinc;2-carboxyphenolate Chemical compound [Zn+2].OC1=CC=CC=C1C([O-])=O.OC1=CC=CC=C1C([O-])=O PZXFWBWBWODQCS-UHFFFAOYSA-L 0.000 description 1
- IFNXAMCERSVZCV-UHFFFAOYSA-L zinc;2-ethylhexanoate Chemical compound [Zn+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O IFNXAMCERSVZCV-UHFFFAOYSA-L 0.000 description 1
- GPYYEEJOMCKTPR-UHFFFAOYSA-L zinc;dodecanoate Chemical compound [Zn+2].CCCCCCCCCCCC([O-])=O.CCCCCCCCCCCC([O-])=O GPYYEEJOMCKTPR-UHFFFAOYSA-L 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
- PAPBSGBWRJIAAV-UHFFFAOYSA-N ε-Caprolactone Chemical compound O=C1CCCCCO1 PAPBSGBWRJIAAV-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C251/00—Compounds containing nitrogen atoms doubly-bound to a carbon skeleton
- C07C251/02—Compounds containing nitrogen atoms doubly-bound to a carbon skeleton containing imino groups
- C07C251/04—Compounds containing nitrogen atoms doubly-bound to a carbon skeleton containing imino groups having carbon atoms of imino groups bound to hydrogen atoms or to acyclic carbon atoms
- C07C251/06—Compounds containing nitrogen atoms doubly-bound to a carbon skeleton containing imino groups having carbon atoms of imino groups bound to hydrogen atoms or to acyclic carbon atoms to carbon atoms of a saturated carbon skeleton
- C07C251/08—Compounds containing nitrogen atoms doubly-bound to a carbon skeleton containing imino groups having carbon atoms of imino groups bound to hydrogen atoms or to acyclic carbon atoms to carbon atoms of a saturated carbon skeleton being acyclic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
- C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4804—Two or more polyethers of different physical or chemical nature
- C08G18/4812—Mixtures of polyetherdiols with polyetherpolyols having at least three hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
- C09J175/08—Polyurethanes from polyethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2190/00—Compositions for sealing or packing joints
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31511—Of epoxy ether
- Y10T428/31515—As intermediate layer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
Definitions
- the present invention relates to the field of aldimines and moisture-curing polyurethane compositions and their use, in particular as elastic adhesives, sealants and coatings.
- Aldimines are condensation products of primary amines and aldehydes and represent a long-known class of compounds. Upon contact with water, aldimines can hydrolyze to amines and aldehydes. Due to this peculiarity, they can be used as a protected form of amines, or of aldehydes. For example, aldimines are used in polyurethane chemistry, where they serve as moisture-activatable crosslinkers, so-called “blocked amines” or “latent hardeners", for one- or two-component isocyanate groups having compositions.
- Isocyanate group-containing compositions also referred to as polyurethane urethane compositions
- polyurethane urethane compositions are used for a wide variety of purposes, including as one- and two-component elastic adhesives, sealants or coatings. They have a particularly good mechanical strength and thermal resistance, if at least partially aromatic polyamines, in particular those with primary amino groups, are used for their curing.
- at least partially aromatic polyamines in particular those with primary amino groups
- Liquid primary aromatic polyamines such as 3,5-diethyl-2,4-diaminotoluene or 3,5-dimethylthio-2,4-diaminotoluene, which are liquid at room temperature, generally have sterically hindered, relatively slow-reacting amino groups and lead to a significantly lower level of mechanical strength Strength.
- Blocked primary aromatic polyamines in the form of aldimines and their use as hardeners for polyurethane compositions are known, for example, from US 4,720,535 and DE 31 33 769 A1.
- the aromatic aldimines described there have the disadvantage that they release volatile, odor-intensive aldehydes during their hydrolysis and thus during the curing reaction.
- the free polyamines are mostly solids with a relatively high melting point or are at least highly viscous and are therefore difficult to use at room temperature.
- aromatic aldimines which are based on primary aromatic polyamines which are solid at room temperature, are liquid at room temperature and are as low viscosity as possible, have low odor hydrolysis and are blocked amines in curable compositions, especially in one and two component isocyanate groups having compositions can be used.
- aromatic dialdimines according to claim 1 solve this problem.
- aromatic dialdimines By the reaction of selected solid at room temperature primary aromatic diamines with special, ester group-containing aldehydes aromatic dialdimines are available which hydrolyze odorless or odorless and surprisingly at room temperature are liquid and even mostly low viscosity. Thereby, they can easily be used as a constituent of curable compositions which are prepared and / or used at room temperature. Together with reactive groups, in particular together with isocyanate groups, they have good storage stability.
- Another object of the invention are curable compositions according to claim 1 1 containing the described aromatic dialdimines.
- these compositions have at least one polyisocyanate P and have a relatively long open time, but surprisingly nevertheless cure quickly, without strong odor formation or blistering.
- they have excellent mechanical properties after curing, in particular a high strength with a high ductility, and a good resistance to heat and moisture.
- the invention relates to aromatic dialdimines of the formula (I).
- A is the radical of a primary aromatic diamine B after the removal of the two primary amino groups, the diamine B being selected from the group consisting of 1, 2, 1, 3 and 1, 4-phenylenediamine, 2, 4- and 2,6-toluenediamine (TDA), 3,4-toluenediamine, 5-isopropyl-2,4-toluenediamine, 5- (tert-butyl) -2,4-toluenediamine, 4,6-dialkyl-1, 3-phenylenediamines having alkyl groups, which are in particular methyl, ethyl, isopropyl or 1-methylpropyl groups, 4,4'-, 2,4'- and 2,2'-diaminodiphenylmethane, 3,3 '-Dimethyl-4,4'-diaminodiphenylmethane, 3,3'-dichloro-4,4'-diaminodiphenylmethane (MOCA), 3,3'-di-tert-buty
- R 1 and R 2 are each independently of one another in each case a monovalent hydrocarbon radical having 1 to 12 C atoms, or R 1 and R 2 together represent a divalent hydrocarbon radical having 4 to 20 C atoms, which is part of an optionally substituted, carbocyclic ring having 5 to 8, preferably 6, carbon atoms.
- R 3 is a hydrogen atom or an alkyl group or a cycloalkyl group or an arylalkyl group, in particular having 1 to 12 C atoms.
- R 4 is either a linear or branched alkyl radical having 6 to 20 carbon atoms, optionally with cyclic moieties and optionally with at least one heteroatom, in particular in the form of ether, ester or aldehyde oxygen, or R 4 is a mono- or polyunsaturated, linear or branched hydrocarbon radical having 6 to 20 C atoms.
- the dialdimines of the formula (I) are liquid at room temperature.
- aromatic amino group refers to an amino group which is bonded to an aromatic or heteroaromatic radical.
- Aromaatic amine refers to an organic compound which has exclusively aromatic amino groups.
- room temperature refers to a temperature of 23 ° C.
- R 1 and R 2 in formula (I) each represent a methyl group.
- R 3 in formula (I) is preferably a hydrogen atom.
- R 4 in formula (I) is preferably either a linear or branched alkyl radical having 1 1 to 20 C atoms, optionally containing cyclic moieties and optionally having at least one heteroatom, in particular in the form of ether, ester or aldehyde oxygen, or for a mono- or polyunsaturated, linear or branched hydrocarbon radical having 1 1 to 20 C atoms.
- R 4 in formula (I) is an alkyl radical having 1 1 C atoms.
- a in formula (I) preferably represents the radical of a primary aromatic diamine B after the removal of the two primary amino groups, the diamine B being selected from the group consisting of 1, 2, 1, 3 and 1, 4-phenylenediamine, 2,4- and 2,6-toluenediamine, 3,4-toluenediamine, 4,4'-, 2,4'- and 2,2'-diaminodiphenylmethane and 3,3'-dichloro-4 , 4'-diaminodiphenylmethane.
- Particularly preferred diamine B are 1,3-phenylenediamine, 1,4-phenylenediamine, 2,4-toluenediamine and 4,4'-diaminodiphenylmethane.
- dialdimines of the formula (I) are 1, 3 and 1, 4-bis - ((2,2-dimethyl-3-lauroyloxypropylidene) amino) benzene, 2,4-bis - ((2,2-bis) dimethyl-3-lauroyloxy-propylidene) amino) -toluene and 4,4'-bis - ((2,2-dimethyl-3-lauroyloxy-propylidene) -amino) -diphenylmethane.
- a particularly preferred dialdimine of formula (I) is 1,4-bis - ((2,2-dimethyl-3-lauroyloxypropylidene) amino) benzene.
- An aromatic dialdimine of the formula (I) is obtainable by a condensation reaction with elimination of water between at least one solid at room temperature, primary aromatic diamine B of the formula (II) and at least one liquid at room temperature aldehyde ALD of the formula (III).
- the aldehyde ALD of the formula (III) is used in this case with respect to the amino groups of the diamine stoichiometrically or in stoichiometric excess.
- the diamine B is reacted without the use of solvents with the aldehyde ALD of formula (III) and the resulting water removed by means of vacuum from the reaction mixture.
- the aldehyde ALD of the formula (III) which can be used to prepare an aromatic dialdimine of the formula (I) is liquid at room temperature and is a tertiary aliphatic or tertiary cycloaliphatic aldehyde.
- the aldehyde ALD of the formula (III) is an ester which is obtainable in particular from the reaction of 2,2-disubstituted 3-hydroxyaldehydes with suitable carboxylic acids.
- Suitable carboxylic acids for this reaction are, for example, saturated aliphatic carboxylic acids, such as 2-ethylcaproic acid, enanthic acid, caprylic acid, pelargonic acid, capric acid, undecanoic acid, lauric acid, tricodecanoic acid, myristic acid, pentadecanoic acid, paimitic acid, margaric acid, stearic acid, nonadecanoic acid, arachidic acid; monounsaturated aliphatic carboxylic acids such as palmitoleic acid, oleic acid; polyunsaturated aliphatic carboxylic acids such as linoleic acid, linolenic acid, elaeostearic acid, arachidonic acid; cycloaliphatic carboxylic acids such as cyclohexane carboxylic acid; Fatty acid mixtures from the technical saponification of natural oils and fats such as rapeseed oil, sunflower oil, linseed oil,
- Suitable 2,2-disubstituted 3-hydroxyaldehydes for this reaction are, for example, 2,2-dimethyl-3-hydroxypropanal, 2-hydroxymethyl-2-methylbutanal, 2-hydroxymethyl-2-ethylbutanal, 2-hydroxymethyl-2-hydroxypropanal methyl-pentanal, 2-hydroxymethyl-2-ethyl-hexanal, 1-hydroxymethyl-cyclopentane-carboxaldehyde, 1-hydroxymethyl-cyclohexanecarboxaldehyde 1-hydroxymethyl-cyclohex-3-en- carboxaldehyde, 2-hydroxymethyl-2-methyl-3-phenyl-propanal , 3-hydroxy-2-methyl-2-phenyl-propanal and 3-hydroxy-2,2-diphenyl-propanal.
- Such 2,2-disubstituted 3-hydroxyaldehydes are themselves obtainable from aldol reactions, in particular crossed aldol reactions, between primary or secondary aliphatic aldehydes, in particular formaldehyde, and secondary aliphatic, secondary arylaliphatic or secondary cycloaliphatic aldehydes, such as, for example, isobutyraldehyde.
- Preferred aldehydes ALD of the formula (III) are 3-cyclohexanoyloxy
- aldehyde ALD of the formula (III) is 2,2-dimethylpropanal, 2,2-dimethyl-3- (2-ethylhexyloxy) -propanal, 2,2-dimethyl-3-lauroyloxypropanal, 2,2-dimethyl-3-myristoyloxypropanal, 2,2-dimethyl 3-palmitoyloxypropanal, 2,2-dimethyl-3-stearoyloxypropanal and analogous esters of other 2,2-disubstituted 3-hydroxyaldehydes.
- aldehyde ALD of the formula (III) is 2,2-dimethylpropanal, 2,2-dimethyl-3- (2-ethylhexyloxy) -propanal, 2,2-dimethyl-3-lauroyloxypropanal, 2,2-dimethyl-3-myristoyloxypropanal, 2,2-dimethyl 3-palmitoyloxypropanal, 2,2-dimethyl-3-stearoyloxypropanal and analogous esters of
- a 2,2-disubstituted 3-hydroxyaldehyde for example 2,2-dimethyl-3-hydroxypropanal
- formaldehyde or paraformaldehyde
- isobutyraldehyde optionally in situ
- This esterification can be carried out without the use of solvents. knew methods. These are described, for example, in Houben-Weyl, "Methods of Organic Chemistry", Vol. VIII, pages 516-528.
- the aldehyde ALD of the formula (III) is odorless or odorless.
- the aldehyde ALD of the formula (III) is odor-free. Odorless aldehydes ALD of the formula (III) represent aldehydes ALDI of the formula (III a)
- R 4a is either a linear or branched alkyl radical having 11 to 20 C atoms, optionally with cyclic moieties and optionally with at least one heteroatom, in particular oxygen in the form of ether, ester or aldehyde groups, or for a mono- or polyunsaturated, linear or branched hydrocarbon radical having 11 to 20 carbon atoms, and R 1 , R 2 and R 3 have the meanings already mentioned.
- Examples of such odor-free aldehydes ALDI are esterification products of the abovementioned 2,2-disubstituted 3-hydroxyaldehydes with carboxylic acids such as lauric acid, tridecanoic acid, myristic acid, pentadecanoic acid, palmitic acid, margaric acid, stearic acid, nonanecanoic acid, arachidic acid, palmitoleic acid, oleic acid, Linoleic acid, linolenic acid, elaeostearic acid, arachidonic acid, fatty acids from the technical saponification of natural oils and fats, such as rapeseed oil, sunflower oil, linseed oil, olive oil, coconut oil, oil palm kernel oil and oil palm oil, as well as technical mixtures of fatty acids containing these acids.
- carboxylic acids such as lauric acid, tridecanoic acid, myristic acid, pentadecanoic acid, palmitic acid, margar
- Preferred odorless aldehydes of the formula (III a) are 2,2-dimethyl-3-lauroyloxypropanal, 2,2-dimethyl-3-myristoyloxypropanal, 2,2-dimethyl-3-pal- mitoyloxypropanal and 2,2-dimethyl-3-stearoyloxypropanal. Particularly preferred is 2,2-dimethyl-3-lauroyloxypropanal.
- the dialdimines of the formula (I) have the property that they do not react to any significant extent with isocyanates in the absence of water.
- Their radicals A, R 1 , R 2 , R 3 and R 4 have no groups which react with isocyanate groups to a significant extent.
- A, R 1 , R 2 , R 3 and R 4 have no hydroxyl groups, no primary or secondary amino groups and no mercapto groups.
- the dialdimines of the formula (I) contain sterically hindered aldimino groups which have no hydrogen atom at the C atom in the ⁇ position and therefore can not tautomerize to form enamino groups.
- dialdimines of the formula (I) are, surprisingly, substances which are liquid at room temperature, although they are derived from said diamines B, which are solid at room temperature.
- a liquid state at room temperature is a great advantage, since such substances can be used without prior dissolution or melting in compositions, especially for applications in compositions which are prepared and / or applied at room temperature or only slightly elevated temperatures, and which in turn have a liquid or pasty state.
- dialdimines of formula (I) which are derived from diamines B having a poor solubility and having a high melting point, such as 1, 4-phenylenediamine having a melting point of about 140 0 C, is at room temperature liquid compounds.
- Preferred dialdimines of the formula (I) are low viscosity liquids and exhibit at 20 0 C a viscosity of at most 1000 mPa-s, especially a viscosity between 5 and 500 mPa-s at.
- viscosity in this document refers to the dynamic viscosity or shear viscosity, which is defined by the ratio between the shear stress and the shear rate (velocity gradient) and determined as described in DIN EN ISO 3219.
- a low viscosity is an additional advantage for many applications of the dialdimines of formula (I), especially for applications in compositions which in turn should not be too high in viscosity.
- the dialdimines of the formula (I) are furthermore odor-poor or odor-free substances. Preference is given to odorless dialdimines of the formula (I) which are prepared starting from the preferred odorless aldehydes ALDI of the formula (III a). For many applications, the absence of odors is a great advantage or an indispensable prerequisite, especially in enclosed spaces such as in the interior of buildings or vehicles and in large-scale applications such as the application of floor coverings.
- the dialdimines of the formula (I) are storage stable under suitable conditions.
- aldimino groups Upon ingress of moisture, their aldimino groups can be hydrolyzed formally to amino groups via intermediates, releasing the corresponding aldehydes ALD of formula (III) used to prepare the dialdimines which, as described earlier, are low in odor or odorless. Since this hydrolysis reaction is reversible and the chemical equilibrium is clearly on the aldimine side, it can be assumed that, in the absence of amine-reactive compounds, only part of the aldimino groups will be partially or completely hydrolyzed.
- the dialdimines of the formula (I) can be prepared from readily available starting substances in a relatively simple process. Although the diamines B used in their preparation are solid at room temperature, the corresponding dialdimines of the formula (I), as already mentioned, are liquid compounds at room temperature.
- dialdimines of the formula (I) can be used very widely. They can be used, for example, wherever they can serve as a source of aldehydes ALD of the formula (III) or of diamines B of the formula (II). In particular, they may function in the function of protected amines, or protected aldehydes, are used in aldehyde- and / or amine-reactive systems and there are selectively deprotected if necessary. In particular, they find application in systems in which compounds are present which react with primary amines. The deprotection is carried out hydrolytically, for example by contact with water or moisture, in particular atmospheric moisture.
- dialdimines of the formula (I) as a constituent of compositions based on at least one isocyanate and / or at least one epoxy resin, in particular for applications such as adhesives, sealants, potting compounds, coatings, floor coverings, paints, lacquers, primers or foams, in particular when these compositions are said to have a low viscosity at room temperature.
- dialdimines of the formula (I) which are liquid at room temperature, compositions are obtainable which formally cure via primary aromatic diamines, in particular sterically little or no hindered primary aromatic diamines which, as such, form relatively high-melting and often poorly soluble solids.
- dialdimines of the formula (I) are suitable as curing agents for one- or two-component compositions comprising isocyanate groups, such as adhesives, sealants, potting compounds, coatings, floor coverings, paints, lacquers, primers or foams.
- compositions of isocyanate group-containing compounds and dialdimines of the formula (I) react on contact with water or moisture with hydrolysis of the aldimino groups to compounds containing urea groups.
- the isocyanate groups react with the formally released by the hydrolysis of the aldimino primary amino groups, wherein an aldehyde ALD is released.
- excess isocyanate groups react directly with Moisture and also form urea groups.
- the composition hardens as a result of these reactions; This process is also referred to as networking.
- the reaction of the isocyanate groups with the hydrolyzing aldimino groups need not necessarily take place via free amino groups.
- reactions with intermediates of the hydrolysis reaction are possible.
- a hydrolyzing aldimino group in the form of a hemiaminal reacts directly with an isocyanate group.
- Dialdimines of the formula (I) which are prepared starting from 1,4-phenylenediamine, the most preferred diamine B, are very particularly suitable as constituents of isocyanate-containing compositions.
- Dialdimines of the formula (I) derived from 1,4-phenylenediamine surprisingly present a low-viscosity liquid at room temperature with a reactivity which is readily controllable relative to isocyanate groups, while 1,4-phenylenediamine itself has a melting point above 140 ° C., a low solubility and at the same time a high , has difficult to control reactivity towards isocyanate groups and therefore is hardly suitable as a curing agent for compositions containing isocyanate groups.
- dialdimines of the formula (I) are stored separately from isocyanate groups. There are no amines in solid form. Only when the water-aldimine mixture comes into contact with isocyanate groups does the hydrolysis completely cease. Namely, the reaction between dialdimines of the formula (I) and isocyanate groups is also greatly retarded as compared with the reaction of the corresponding primary amines when the aldimines are stored together with water.
- Another object of the invention is a curable composition
- a curable composition comprising at least one polyisocyanate P and at least one aromatic dialdimine of formula (I).
- polyisocyanate as used herein
- Isocyanate group-containing polymers having a relatively high molecular weight.
- Suitable as polyisocyanate P in one embodiment is an isocyanate group-containing polyurethane polymer PUP.
- polymer in the present document comprises, on the one hand, a collective of chemically uniform, but different in terms of degree of polymerization, molecular weight and chain length macromolecules, which was prepared by a polyreaction (polymerization, polyaddition, polycondensation) Such a group of macromolecules from polyreactions, ie compounds which have been obtained by reactions, such as additions or substitutions, of functional groups on predetermined macromolecules and which may be chemically uniform or chemically nonuniform.
- the term also includes so-called prepolymers, that is to say reactive oligomeric pre-adducts whose functional groups are involved in the construction of macromolecules.
- polyurethane polymer encompasses all polymers which are prepared by the so-called diisocyanate-polyaddition process, including those polymers which are almost or completely free of urethane groups
- polyurethane polymers are polyether polyurethanes, polyester polyurethanes, polyethers Polyureas, polyureas, polyester-polyureas, polyisocyanurates and polycarbodiimides.
- a suitable polyurethane polymer PUP is in particular obtainable from the reaction of at least one polyol with at least one polyisocyanate.
- This reaction may take place by the polyol and the polyisocyanate by typical processes, for example at temperatures from 50 0 C to 100 0 C, optionally using suitable catalysts, be reacted, the polyisocyanate being metered such that its isocyanate groups Ratio to the hydroxyl groups of the polyol are present in stoichiometric excess.
- the polyisocyanate is metered so that an NCO / OH ratio of 1.3 to 5, in particular from 1.5 to 3, is maintained.
- the NCO / OH ratio is understood to mean the ratio of the number of isocyanate groups used to the number of hydroxyl groups used.
- a content of free isocyanate groups of from 0.5 to 15% by weight, particularly preferably from 0.5 to 10% by weight, preferably remains.
- the polyurethane polymer PUP can be prepared with the concomitant use of plasticizers, with the plasticizers used containing no isocyanate-reactive groups.
- polystyrene resin examples include polystyrene resin, polystyrene resin, polystyrene resin, polystyrene resin, polystyrene resin, polystyrene resin, polystyrene resin, polystyrene resin, polystyrene resin, polystyrene resin, polystyrene resin, polystyrene resin, polystyrene resin, possibly polymerized by means of a starter molecule having two or more active hydrogen atoms such as water, ammonia or compounds having multiple OH or NH groups such as 1, 2-ethanediol, 1, 2 and 1 , 3-propanediol, neopentyl glycol, diethylene glycol, triethylene glycol, the isomeric dipropylene glycols and tripropylene glycols, the isomeric butanediols, pentanediols, hexanediols, h
- Both polyoxyalkylene polyols having a low degree of unsaturation (measured according to ASTM D-2849-69 and expressed in milliequivalents of unsaturation per gram of polyol (mEq / g)) prepared, for example, by means of so-called double metal cyanide complex catalysts (DMC) can be used.
- DMC double metal cyanide complex catalysts
- Catalysts), as well as polyoxyalkylene polyols with a higher Unsaturation degree prepared for example with the aid of anionic catalysts such as NaOH, KOH, CsOH or alkali alcoholates.
- polyoxyalkylenediols or polyoxyalkylenetriols in particular polyoxyethylene- and polyoxypropylenedi- and -triols.
- polyoxyalkylenediols and -triols having a degree of unsaturation lower than 0.02 meq / g and having a molecular weight in the range from 1000 to 30 000 g / mol, and also polyoxypropylenediols and -triols having a molecular weight of 400-800 g / mol.
- ethylene oxide-terminated (“EO" endcapped) polyoxypropylene polyols are also particularly suitable, the latter being specific polyoxypropylene polyoxyethylene polyols obtained, for example, by pure polyoxypropylene polyols, especially polyoxypropylene diols and triols, upon completion of the polypropoxylation reaction with ethylene oxide alkoxylated and thereby have primary hydroxyl groups.
- EO ethylene oxide-terminated
- Polyesterpolyols also called oligoesterols, prepared for example from dihydric to trihydric alcohols such as 1, 2-ethanediol, diethylene glycol, 1, 2-propanediol, dipropylene glycol, 1, 4-butanediol, 1, 5-pentanediol, 1 , 6-hexanediol, neopentyl glycol, glycerol, 1,1,1-trimethylolpropane or mixtures of the abovementioned alcohols with organic dicarboxylic acids or their anhydrides or esters such as succinic acid, glutaric acid, adipic acid, suberic acid, sebacic acid, dodecanedicarboxylic acid, maleic acid, fumaric acid, phthalic acid , Isophthalic acid, terephthalic acid and hexahydrophthalic acid or mixtures of the aforementioned acids, as well as polyester polyols from lactones such as ⁇
- Polycarbonate polyols as obtainable by reacting, for example, the abovementioned alcohols used to form the polyesterpolyols with dialkyl carbonates, diaryl carbonates or phosgene. At least two hydroxyl-bearing block copolymers which have at least two different blocks of polyether, polyester and / or polycarbonate structure of the type described above.
- Polyacrylate and polymethacrylate polyols Polyhydrocarbyl polyols, also called oligohydrocarbonols, such as, for example, polyhydroxy-functional ethylene-propylene, ethylene-butylene or ethylene-propylene-diene copolymers, for example produced by Kraton Polymers, or polyhydroxy-functional copolymers of dienes, such as 1,3-butanediene or diene mixtures and vinyl monomers such as styrene, acrylonitrile or isobutylene, or polyhydroxy-functional polybutadiene polyols such as those prepared by copolymerization of 1, 3-butadiene and allyl alcohol and which may also be hydrogenated.
- Polyhydrocarbyl polyols also called oligohydrocarbonols, such as, for example, polyhydroxy-functional ethylene-propylene, ethylene-butylene or ethylene-propylene-diene copolymers, for example produced by Kraton Polymers,
- These stated polyols preferably have an average molecular weight of 250 - 30O00 g / mol, in particular 400-20 1 OOO g / mol, and preferably have an average OH functionality ranging from 1.6 to 3.
- Preferred polyols are polyether, polyester, polycarbonate and polyacrylate polyols, preferably diols and triols. Particularly preferred are polyether polyols, especially polyoxypropylene and polyoxypropylene polyoxyethylene polyols.
- small amounts of low molecular weight di- or polyhydric alcohols such as 1, 2-ethanediol, 1, 2- and 1, 3-propanediol, neopentyl glycol, diethylene glycol, triethylene glycol, the isomeric dipropylene glycols and tripropylene glycols, the isomeric Butanediols, pentanediols, hexanediols, heptanediols, octanediols, nonanediols, decanediols, undecanediols, 1, 3- and 1, 4-cyclohexanedimethanol, hydrogenated bisphenol A, dimeric fatty alcohols, 1,1,1-trimethylolethane, 1,1,1-trimethylolpropane, glycerol, pentaerythritol, sugar alcohols such as xylitol,
- Aromatic or aliphatic polyisocyanates are used as the polyisocyanate for the preparation of a polyurethane polymer PUP containing isocyanate groups.
- aromatic isocyanate refers to an organic compound which has exclusively aromatic isocyanate groups.
- Aromaatic refers to an isocyanate group bonded to an aromatic or heteroaromatic radical.
- aliphatic isocyanate is meant an organic compound containing aliphatic isocyanate groups.
- Aliphatic refers to an isocyanate group attached to an aliphatic, cycloaliphatic or arylaliphatic radical.
- Suitable aromatic polyisocyanates are, for example, monomeric di- or triisocyanates such as 2,4- and 2,6-toluene diisocyanate and any desired mixtures of these isomers (TDI), 4,4'-, 2,4'- and 2,2'-diphenylmethanediisocyanates.
- MDI monomeric MDI or PMDI
- NDI 5-diisocyanate
- TODI 3,3'-dimethyl-4,4'-diisocyanatodiphenyl
- DADI dianisidine diisocyanate
- 1,3,5-tris isocyanatomethyl) benzene
- Tris (4-isocyanatophenyl) methane tris (4-isocyanatophenyl) thiophosphate
- oligomers and polymers of the aforementioned isocyanates as well as any mixtures of the aforementioned isocyanates.
- Preferred are MDI and TDI.
- polyisocyanate P is suitable in a further embodiment, a polyisocyanate PI in the form of a monomeric di- or triisocyanate, or an oligomer of a monomeric diisocyanate, wherein, for example, the above-mentioned aromatic and aliphatic di- and triisocyanates are suitable as monomeric diol triisocyanate.
- oligomers of a monomeric diisocyanate are the oligomers of HDI, IPDI and TDI.
- Such oligomers are in practice usually mixtures of substances having different degrees of oligomerization and / or chemical structures. They preferably have an average NCO functionality of 2.1 to 4.0 and in particular contain isocyanurate, iminooxadiazinedione, uretdione, urethane, biuret , Allophanate, carbodiimide, uretonimine or oxadiazinetrione groups. Preferably, they have a low content of monomeric diisocyanates.
- HDI biurets for example Desmodur ® N 100 and Desmodur ® N 3200 (from Bayer), Tolonate ® HDB and Tolonate ® HDB-LV (Rhodia) and Duranate 24A-100 ® (by Asahi Kasei); HDI-Isocyanurates such as Desmodur ® N 3300, Desmodur ® N 3600 and Desmodur ® N 3790 BA (Bayer), Tolonate ® HDT, Tolonate ® HDT LV and Tolonate ® HDT-LV2 (from Rhodia), Duranate ® TPA-100 and Duranate THA ® 100 (by Asahi Kasei) and Coronate HX ® (from Nippon Polyurethane); HDI uretdiones, for example Desmodur ® N 3400 (Bayer); HDI Iminooxadiazindiones, for example Desmodur ® XP 2410
- the polyisocyanate P is a
- modified MDI liquid forms of MDI
- Desmodur ® CD Desmodur ® PF and Desmodur ® PC (from Bayer)
- ® Lupranat MM 103 from BASF
- Isonate M 143 ® Dow
- Suprasec 2020 and Suprasec ® ® 2388 from Huntsman
- Polymeric MDI or PMDI are mixtures of MDI and MDI homologues.
- Commercially available types of PMDI are, for example Desmodur ® VL, Desmodur ® VL 50, Desmodur ® VL R 10, Desmodur ® VL R 20 and Desmodur ® VKS 20 F (from Bayer), Lupranat ® M 10 R and Lupranat ® M 20 R ( ® from BASF), Isonate ® M 309, Voranate M 229 and Voranate M ® 580 (from Dow) and Suprasec ® 5025, Suprasec 2050 and Suprasec ® ® 2487 (from Huntsman).
- Preferred polyisocyanates PI are PMDI, forms of MDI which are liquid at room temperature, and the oligomers of HDI, IPDI and TDI, in particular the isocyanurates.
- Particularly preferred polyisocyanates PI are those having aromatic isocyanate groups.
- polyisocyanate PI Most preferred as the polyisocyanate PI are MDI types, especially those with a high proportion of 2,4'-isomer, furthermore PMDI, as well as forms of MDI that remain liquid at room temperature.
- the polyisocyanate P is a
- Mixture consisting of at least one polyurethane polymer PUP and at least one polyisocyanate PI, as described above.
- the polyisocyanate P is present in an amount of from 5 to 95% by weight, preferably in an amount of from 10 to 90% by weight, based on the total composition.
- the polyisocyanate P is preferably present in an amount of 5 to 60% by weight, especially 10 to 50% by weight, based on the total composition.
- the curable composition contains, in addition to at least one polyisocyanate P, at least one aromatic dialdimine of the formula (I), as described in detail above, or a preferred embodiment thereof.
- the dialdimine of formula (I) is preferably present in the curable composition in a slightly more than stoichiometric, stoichiometric or sub stoichiometric amount, based on the isocyanate groups.
- the dialdimine of the formula (I) is advantageously present in the composition in an amount such that the ratio between the number of aldimino groups and the number of isocyanate groups is 0.1 to 1.1, in particular 0.15 to 1.0, particularly preferably 0.2 to 0.9.
- dialdimine of formula (I) mixtures of various dialdimine of formula (I)
- Dialdimines of formula (I) can be used. In particular, you can
- the curable composition may contain, in addition to at least one polyisocyanate P and at least one aromatic dialdimine of formula (I), further auxiliaries and additives.
- the curable composition reacts with water or moisture and is thereby crosslinked. Is enough water available to one
- composition which has good mechanical properties.
- the composition is therefore called "moisture-curing".
- the curable composition may be in the form of a one-part composition or in the form of a two-part composition.
- a "one-component composition" is in the present
- Document refers to a curable composition whose constituents are stored in mixed form in the same container, and which is storage stable at room temperature for a long period of time, ie not or only slightly changed by the storage in their application or use properties, and which after application cured by the action of moisture.
- a "two-component composition” refers to a curable composition whose constituents are present in two different components which are stored in separate containers and are each stable on their own, and only shortly before or during the application of the composition do the two components become intertwined mixed, whereupon the mixed composition Setting cures, wherein the curing may take place or be completed only by the action of moisture.
- One-component compositions have the advantage that they can be applied without mixing, while two-component compositions have the advantage that they can cure faster and as components may contain substances which together with
- Isocyanates are not storable.
- the curable composition is in the form of a one-part composition.
- polyurethane polymer PUP a polyurethane polymer PUP, or a mixture of a polyurethane polymer PUP and a polyisocyanate PI, as described above, is preferred.
- auxiliaries and additives for a one-component composition for example, the following substances are suitable:
- Plasticizers for example carboxylic esters, such as phthalates, for example dioctyl phthalate, diisononyl phthalate or diisodecyl phthalate, adipates, for example dioctyl adipate, azelates and sebacates, organic phosphoric and sulfonic acid esters or polybutenes;
- carboxylic esters such as phthalates, for example dioctyl phthalate, diisononyl phthalate or diisodecyl phthalate
- adipates for example dioctyl adipate, azelates and sebacates
- organic phosphoric and sulfonic acid esters or polybutenes for example carboxylic esters, such as phthalates, for example dioctyl phthalate, diisononyl phthalate or diisodecyl phthalate, adipates, for example dioctyl adipate
- thermoplastic polymers for example homopolymers or copolymers of unsaturated monomers, in particular from the group comprising ethylene, propylene, butylene, isobutylene, isoprene, vinyl acetate and alkyl (meth) acrylates, in particular polyethylenes (PE), polypropylenes (PP) , Polyisobutylenes, ethylene-vinyl acetate copolymers (EVA) and atactic poly- ⁇ -olefins (APAO);
- PE polyethylenes
- PP polypropylenes
- EVA ethylene-vinyl acetate copolymers
- APAO atactic poly- ⁇ -olefins
- inorganic and organic fillers for example ground or precipitated calcium carbonates, which are optionally coated with fatty acids, in particular stearates, barite (BaSO 4 , also called barite), quartz flours, calcined kaolins, aluminum oxides, aluminum hydroxides, silicic acids, in particular finely divided silicas from pyrolysis processes, Russian, in particular industrially produced Russian (hereinafter referred to as "carbon black”), PVC powder or hollow spheres, - fibers, for example of polyethylene, - pigments, for example titanium dioxide or iron oxides;
- Catalysts which accelerate the hydrolysis of the aldimino groups in particular acids or compounds which are hydrolysable to acids, for example organic carboxylic acids such as benzoic acid, salicylic acid or 2-nitrobenzoic acid, organic carboxylic anhydrides such as phthalic anhydride, hexahydrophthalic anhydride and hexahydromethylphthalic anhydride, silyl esters of organic carboxylic acids, organic sulfonic acids such as methanesulfonic acid, p-toluenesulfonic acid or 4-dodecylbenzenesulfonic acid, sulfonic acid esters, other organic or inorganic acids, or mixtures of the abovementioned acids and acid esters; Catalysts which accelerate the reaction of the isocyanate groups with water, in particular metal compounds, for example organotin compounds such as dibutyltin diacetate, dibutyltin dilaurate, dibutylt
- Rheology modifiers such as, for example, thickeners or thixotropic agents I, for example urea compounds, polyamide waxes, bentonites or pyrogenic silicas; Reactive diluents and crosslinkers, for example monomeric diisocyanates and oligomers and derivatives of these diisocyanates, adducts of monomeric diisocyanates with short-chain polyols, and adipic dihydrazide and other dihydrazides, and blocked amines in the form of ketimines, oxazolidines, enamines or aldimines not corresponding to formula (I), which are obtainable starting from amines other than the aromatic diamines B of the formula (II) and / or aldehydes other than the aldehydes ALD of the formula (III), in particular the polyaldimines described in WO 2004/013088 A1 and in particular Polyaldimines starting from oligomeric forms of diaminodiphen
- Drying agents such as, for example, molecular sieves, calcium oxide, highly reactive isocyanates, such as p-tosyl isocyanate, orthoformic acid esters, tetraalkoxysilanes, such as tetraethoxysilane;
- Organoalkoxysilanes also referred to below as "silanes", for example epoxysilanes, (meth) acrylsilanes, isocyanatosilanes, vinylsilanes, carbamatosilanes, alkylsilanes, S- (alkylcarbonyl) -mercaptosilanes and aldiminosilanes, and oligomeric forms of these silanes, - stabilizers against heat, light and UV radiation;
- silanes for example epoxysilanes, (meth) acrylsilanes, isocyanatosilanes, vinylsilanes, carbamatosilanes, alkylsilanes, S- (alkylcarbonyl) -mercaptosilanes and aldiminosilanes, and oligomeric forms of these silanes, - stabilizers against heat, light and UV radiation;
- Biocides such as algicides, fungicides or fungal growth inhibiting substances.
- additives do not affect the storage stability of the composition. This means that during storage these additives must not trigger the reactions leading to crosslinking, such as hydrolysis of the aldimino groups or crosslinking of the isocyanate groups, to any significant extent. In particular, this means that all of these additives should contain no or at most traces of water. It may therefore be useful to chemically or physically dry certain additives before mixing in the composition.
- the one-component composition preferably contains at least one catalyst in addition to at least one polyisocyanate P and at least one aromatic dialdimine of the formula (I).
- the composition contains as catalyst a carboxylic acid such as benzoic acid or salicylic acid and / or a tin compound and / or a bismuth compound. It may be advantageous if different catalysts or different types of catalysts, such as an acid and a metal compound, are mixed together.
- the one-component composition contains in addition to at least one polyisocyanate P and at least one aromatic dialdimine of the formula (I) at least one further auxiliary and
- Additive in particular selected from the group comprising plasticizers, crosslinkers, fillers and thickeners.
- the one-component composition described is preferably prepared and stored in the absence of moisture.
- a suitable climate-proof packaging or arrangement such as a keg, bag or cartridge, it has excellent storage stability.
- the terms “storage-stable” and “storage stability” in connection with a curable composition refer to the fact that the viscosity of the composition does not increase or at most rises so much at a given application temperature and with a suitable storage in the period considered that the composition remains usable in the intended manner.
- the aldimino groups of the dialdimine of the formula (I) begin to hydrolyze.
- the isocyanate groups present in the composition react thereon with the hydrolyzing aldimino groups to release the aldehyde ALD of formula (III).
- excess isocyanate groups react directly with water.
- the composition cross-links and eventually hardens to a solid material.
- the reaction of the isocyanate groups with the hydrolyzing aldimino groups need not necessarily take place via free amino groups; reactions with intermediates of the hydrolysis reaction are also possible.
- a hydrolyzing aldimino group in the form of a hemiaminal reacts directly with an isocyanate group.
- the water needed for the curing reaction can either come from the air (humidity), or the composition can be contacted with a water-containing component, for example by spraying, or it can be added to the composition in the Application, a water-containing component are added, in particular by mixing.
- the curing is generally free of bubbles, especially at high curing rate.
- the curing rate can be influenced by the type and amount of one or more optionally present catalysts, the temperature prevailing during the curing and the humidity or the amount of added water. If a component containing water is added to the composition, the curing takes place at a greatly accelerated rate compared with curing exclusively with atmospheric moisture.
- the present invention also describes a cured composition.
- the curable composition is in the form of a bicomponent composition.
- the two-component composition consists of one component
- the polyisocyanate P and the dialdimine of the formula (I) are part of
- Component K1 while the component K2 isocyanate-reactive compounds, in particular water and / or polyols and / or
- Polyamines and / or amino alcohols and / or polythiols contains.
- the polyisocyanate P is part of the component K1, while the component K2 the dialdimine of the formula (I) and isocyanate-reactive compounds, in particular water and / or polyols and / or polyamines and / or amino alcohols and / or polythiols.
- the component K2 preferably contains at least one dialdimine of the formula (I) and water.
- polyisocyanate P in the two-component composition is a polyisocyanate PI, or a mixture of a polyurethane polymer PUP and a polyisocyanate PI as previously described.
- Suitable polyols in component K2 are the same commercial polyols as have already been mentioned as suitable for the preparation of a polyurethane polymer PUP, as well as those low molecular weight di- or polyhydric alcohols previously mentioned as suitable for co-use in the preparation of a polyurethane polymer PUP were.
- Suitable polyamines in component K2 are commercially available aliphatic or aromatic polyamines having primary and / or secondary amino groups, such as are commonly used in two-component polyurethane compositions, such as, for example, 1, 5-diamino-2-methylpentane (MPMD), 1, 3 -xylylenediamine (MXDA), N, N'-dibutyl-ethylenediamine, 3,5-diethyl-2,4 (6) -diaminotoluene (DETDA), 3,5-dimethylthio-2,4 (6) -diaminotoluene (Ethacure ® 300, Albemarle) and primary and secondary polyoxyalkylene-diamines, such as are obtainable for example under the name Jeffamine ® (from Huntsman Chemicals).
- MXDA 1, 3 -xylylenediamine
- DETDA 3,5-diethyl-2,4 (6) -diaminotoluene
- Suitable amino alcohols in component K2 are compounds which have at least one primary or secondary amino group and at least one hydroxyl group, for example 2-aminoethanol, 2-methylaminoethanol, 1-amino-2-propanol and diethanolamine.
- Suitable as polythiols in the component K2 are, for example, known under the brand name Thiokol ® liquid mercapto-terminated polymers, and polyesters of thiocarboxylic acids. If the component K2 contains water, it is advantageous if the amount of water corresponds at most to the amount of water required for the hydrolysis of the dialdimine and, if present, further blocked amines.
- both components may contain other auxiliaries and additives, as already mentioned above for a one-component composition.
- auxiliaries and additives are additionally possible.
- these are those auxiliaries and additives which are not or only briefly storable together with aromatic isocyanate groups.
- catalysts such as: Compounds of zinc, manganese, iron, chromium, cobalt, copper, nickel, molybdenum, lead, cadmium, mercury, antimony, vanadium, titanium, zirconium or potassium, such as zinc (II) acetate, zinc (II) 2-ethylhexanoate , Zinc (II) laurate, zinc (II) oleate, zinc (II) naphthenate, zinc (II) acetylacetonate, zinc (II) salicylate, manganese (II) 2-ethylhexanoate, iron (III ) -2-ethylhexanoate, iron (III) acetylacetonate, chromium (III)
- the two-component composition preferably contains at least one catalyst in addition to at least one polyisocyanate P and at least one aromatic dialdimine of the formula (I).
- the composition contains as catalyst a carboxylic acid such as benzoic acid or salicylic acid and / or a tin compound and / or a bismuth compound. It may be advantageous if different catalysts or different types of catalysts, such as an acid and a metal compound, are mixed together.
- the two-component composition contains in addition to at least one polyisocyanate P and at least one aromatic dialdimine of the formula (I) at least one further auxiliary and additive, in particular selected from the group comprising plasticizers, crosslinkers, fillers and thickeners.
- the component K2 preferably contains no isocyanate groups.
- the two-component composition contains further blocked amines, in particular ketimines, oxazolidines, enamines or aldimines not corresponding to formula (I), these may be part of the component K1 and / or K2; they are preferably part of component K2.
- the blocked amines have the property of releasing amino groups on their hydrolysis which react rapidly with the presence of isocyanate groups.
- the preparation of the described components K1 and K2 is carried out separately from each other, at least for the component K1 in the absence of moisture.
- the two components K1 and K2 are separated from each other, that is, they can each be stored in a suitable package or arrangement, such as a keg, hobbock, pouch, bucket or cartridge, for several months to a year or more before use without them vary in their respective properties to a degree relevant to their use.
- the mixing ratio between the components K1 and K2 is preferably selected such that the isocyanate-reactive groups of the components K1 and K2 are in a suitable ratio to the isocyanate groups of the component K1.
- the two-component composition described before curing are suitably 0.1 to 1.1, preferably 0.5 to 0.95, particularly preferably 0.6 to 0.95 equivalent of the sum of the isocyanate-reactive groups per equivalent of isocyanate groups present, the aldimino and optionally present further blocked amino groups to the isocyanates reactive groups are counted, and water is not calculated to the isocyanate-reactive groups.
- Excess isocyanate groups react in particular directly with water, for example with atmospheric moisture.
- the components K1 and K2 are mixed together by means of a suitable process.
- the mixing can be continuous or batchwise.
- the blended composition is applied during mixing or subsequently to mixing by contacting it with a solid surface, optionally by means of a suitable adjuvant. Care must be taken to ensure that there is not too much time between blending components K1 and K2 and the application, since this can lead to disruptions, such as a slower or incomplete buildup of adhesion to the solid surface.
- the maximum time within which the mixed composition should be applied is called "pot life" or Also often referred to as open time is the time at which the viscosity of the blended composition doubles.
- the dialdimine of formula (I) begins to hydrolyze in the manner already described and to react with the isocyanate groups as soon as it comes into contact with water. Either the water is already present in the blended composition - by being a component of component K2, or by adding it to the composition before or during mixing of components K1 and K2 - or the water diffusing into the air in the form of moisture mixed composition. In the latter case, the reaction of the dialdimine with the isocyanate groups takes place from the outside inwards, parallel to the penetration of the atmospheric moisture into the composition.
- the reaction of the isocyanate groups with the hydrolyzing aldimino groups does not necessarily take place via free amino groups, but can also take place via intermediates of the hydrolysis reaction.
- the reactive groups are released from further latent curing agents optionally present in the composition.
- the compounds which may be present in the composition and which are reactive toward isocyanate groups in particular polyols and polyamines, react with the isocyanate groups.
- Excess isocyanate groups react in particular directly with water.
- the mixed composition cross-links and eventually hardens to a solid material.
- the present invention also describes a cured composition.
- the curing is generally free of bubbles, especially at high curing rate.
- the curing rate can be influenced by the type and amount of one or more optionally present catalysts, by the temperature prevailing during the curing and by the air humidity or the amount of water introduced via the component K2.
- the described curable compositions comprising at least one polyisocyanate P and at least one aromatic dialdimine of the formula (I) have a whole series of advantageous properties.
- dialdimines of the formula (I) can be prepared in a simple process, in particular due to the fact that the dialdimines of the formula (I) are liquid at room temperature.
- dialdimines of the formula (I) are now also high-melting primary aromatic diamines, in particular 1, 4-phenylenediamine, in a suitable form for use in a curable composition, which previously in room temperature, especially solvent-free polyurethane compositions processed very difficult or were not usable at all.
- Curable compositions containing low viscosity diadimines of formula (I) have an advantageous consistency with a relatively low intrinsic viscosity which, for many applications, enables good processability of the composition.
- the described curable compositions have a good storage stability, especially when the dialdimines of the formula (I) are stored together with the polyisocyanate P. Also in the preferred case where the polyisocyanate P has aromatic isocyanate groups, the storage stability together with dialdimines of the formula (I) is good. Furthermore, the curable compositions described before, during and after curing have only a very low odor, or are completely odorless, which is generally not the case in the presence of aldehydes.
- compositions containing as dialdimines of the formula (I) exclusively the preferred dialdimines derived from aldehydes ALDI of the formula (III a) are odorless before, during and after curing; provided, of course, that they contain no other ingredients with a strong odor.
- the described curable compositions in particular in the form of one-component compositions, have a relatively long open time.
- the cure rate of these compositions is no longer than, for example, the cure rate of corresponding compositions containing aliphatic dialdimines starting from are prepared from aliphatic amines.
- the combination of long open time and rapid cure is highly desirable in practice for many one-component and two-component applications.
- the use of a one-part composition is often easier if there is still some time left after its application to bring the composition into the desired shape before a skin of hardened material has formed on the surface.
- the use of a two-component composition is often much easier, if this has a prolonged open time, but both the mixing process and the application of the composition, and any necessary post-processing steps, for example to bring the composition in the desired shape, within the Open time. Subsequently, however, the composition should cure quickly in order to be as soon as possible.
- the relatively long open time has a particularly advantageous effect, since in such accelerated systems the time window available for the application is generally very tight.
- the described curable compositions generally cure without the formation of bubbles. This also applies at high curing rate.
- the curable compositions described in the cured state have good mechanical properties and good resistance to heat and moisture.
- the preferred compositions containing an aromatic polyisocyanate P have a particularly good resistance to heat and moisture and particularly good mechanical properties, in particular a high strength with a high elasticity.
- the good thermal stability may possibly be attributed to the fact that the urea groups formed in the curing reaction of the aromatic isocyanate groups with the aromatic aldimino groups are aromatic on both sides and therefore show no tendency to exchange the substituents.
- Curable compositions comprising at least one polyisocyanate P and at least one of the particularly preferred dialdimines of the formula (I) starting from 1,4-phenylenediamine and an aldehyde ALDI of the formula (III a) have particularly advantageous properties. They are particularly easy to prepare due to the fact that these dialdimines of the formula (I) are odor-free, low-viscosity liquids, and in the cured state have particularly good mechanical properties, in particular particularly high strengths, in particular if the polyisocyanate P an aromatic polyisocyanate is P.
- compositions A further advantage of these compositions is that the 1,4-phenylenediamine-derived aldimines of formula (I) have a relatively high reactivity toward isocyanates for aromatic amines, resulting in a comparatively short skin-forming time of the compositions.
- 1,4-phenylenediamine underlying the dialdimine has low toxicity for aromatic amines, which is expressed, for example, in the fact that it is classified neither as a mutagen nor as a carcinogen.
- the curable compositions according to the invention can be used to obtain one- and two-component polyurethane compositions which formally cure via primary aromatic diamines, in particular sterically little or no hindered primary aromatic diamines which, as such, form relatively high-melting and often poorly soluble solids and are therefore scarcely usable in practice ,
- the polyurethane compositions can be formally cured via the particularly high-melting and sparingly soluble 1,4-phenylenediamine.
- Cured polyurethane compositions with urea bonds, which are formally composed of 1, 4-phenylenediamine and aromatic isocyanate groups, have a particularly high strength and a particularly good resistance to heat and moisture.
- Preferred applications of the described curable composition are adhesives, sealants, potting compounds, coatings, floor coverings, paints, lacquers, primers or foams.
- the described curable composition is particularly suitable as a one-component or two-component elastic adhesive with high
- the described curable composition is particularly suitable as an adhesive in vehicle construction, in particular for gluing windows.
- a further aspect of the present invention relates to a method for bonding a substrate S1 to a substrate S2, which comprises the steps of: i) applying a previously described curable composition to a substrate S1; ii) contacting the applied composition with a
- Another aspect of the present invention relates to a method of sealing. This comprises the step: i ") applying a previously described curable composition between a substrate S1 and a substrate S2 so that the composition is in contact with the substrate S1 and the substrate S2; wherein the substrate S2 is made of the same or a different material as the substrate S1.
- the composition is pressed into a so-called joint.
- Another aspect of the present invention relates to a method of coating a substrate S1. This comprises the step of applying a previously described curable composition to a substrate S1 within the open time of the composition.
- suitable substrates S1 and / or S2 are, for example, inorganic substrates such as glass, glass-ceramic, concrete, mortar, brick, brick, plaster and natural stones such as granite or marble; Metals or alloys such as aluminum, steel, non-ferrous metals, galvanized metals; organic substrates such as leather, fabrics, paper, wood, resin-bonded wood materials, resin-Texil composites, plastics such as polyvinyl chloride (hard and soft PVC), acrylonitrile-butadiene-styrene copolymers (ABS), SMC (Sheet Molding Composites ), Polycarbonate (PC), polyamide (PA), polyesters, PMMA, polyesters, epoxy resins, polyurethanes (PUR), polyoxymethylene (POM), polyolefins (PO), in particular plasma-corona or flame-treated polyethylene (PE) or polypropylene ( PP), ethylene / propylene copolymers (EPM) and ethylene / propylene-
- the substrates can be pretreated before applying the composition.
- pretreatments include, in particular, physical and / or chemical cleaning methods, for example grinding, sandblasting, brushing or the like, or treatment with cleaners or solvents or the application of an adhesion promoter, a primer solution or a primer.
- the two components K1 and K2 are mixed together shortly before application.
- Bonding and / or sealing of substrates S1 and / or S2 typically takes place from commercially available cartridges, which are preferably operated manually for smaller applications.
- Such types of application are particularly preferred in industrial manufacturing applications or in large applications.
- the application of the curable composition can be carried out in a wide temperature range.
- the composition may be applied at room temperature, as is typical of an elastic adhesive or sealant.
- the composition can also be applied at lower as well as at higher temperatures. The latter is particularly advantageous if the composition proportionally contains highly viscous or fusible components such as are typically present in hot melt adhesives, for example warm melt adhesives (hot melt) or hot melt adhesives (hot melt).
- This article is in particular a building, in particular a building of civil engineering, or an industrial good or a consumer good, in particular a window, a household machine, or a means of transport, in particular a vehicle on water or on land, preferably an automobile, a bus , a truck, a train or a ship, or an attachment of a means of transport, or an article of the furniture, textile or packaging industry.
- Infrared spectra were measured on a FT-IR 1600 device from Perkin-Elmer as neat films on a ZnSe crystal horizontal ATR measuring unit with solid substances melted for application; the absorption bands are reported in wave numbers (cnrf 1) (measuring window: 4000-650 cm "1); the addition sh indicates a band appears as a shoulder, the addition br on a broad band.
- the viscosity was measured on a thermostatically controlled cone-plate viscometer Physica UM (cone diameter 20 mm, cone angle 1 °, cone tip-plate distance 0.05 mm, shear rate 10 to 1000 s -1 ), as described in DIN EN ISO 3219.
- the amine content that is the total content of free amino groups and aldimino groups in the prepared dialdimines, was determined by titration (with 0.1 N HClO 4 in glacial acetic acid, against crystal violet) and is always given in mmol N / g.
- Example 2 Under the same conditions as described in Example 1 were 5.00 g of 1, 4-phenylenediamine (amine content 18.40 mmol N / g, melting point 138- 143 0 C) with 27.62 g of 2,2-dimethyl-3-lauroyloxy-propanal reacted. Yield: 30.7 g of a light yellow, odorless oil with an amine content of 3.00 mmol N / g and a viscosity of 170 mPa-s at 20 0 C.
- Example 5 Dialdimine A-5 Under the same conditions as described in Example 1
- Example 2 Described under the same conditions as in Example 1 10:00 g of 4,4'-diamino-3,3'-dichloro-diphenylmethane (MOCA; amine content 7:43 mmol N / g; m.p. 102-107 0 C) with 22:36 g 2,2- Implemented dimethyl-3-lauroyloxypropanal. Yield: 31 .1 g of a yellow, odorless oil with an amine content of 2.36 mmol N / g and a viscosity of 780 mPa s at 2O 0 C.
- MOCA 4,4'-diamino-3,3'-dichloro-diphenylmethane
- Phenylenediamine (1, 4-PDA, amine content 18.40 mmol N / g, melting point 138- 143 0 C) in 5.00 g of 3-acetoxy-2,2-dimethyl-propanal suspended.
- Dialdimine A-9 52.4 g (0.18 mol) of distilled 2,2-dimethyl-3-lauroyloxypropanal were introduced into a round-bottomed flask under a nitrogen atmosphere. With vigorous stirring, 10.0 g (0.17 mol N) of 1,6-hexamethylenediamine (BASF, amine content 17.0 mmol N / g) were slowly added from a heated dropping funnel. Thereafter, the volatiles were removed in vacuo (10 mbar, 80 0 C). Yield: 57.7 g of a clear, pale yellow and odorless oil with an amine content of 2.85 mmol N / g.
- Example 10 Dialdimine A-10
- example 10 of DE 31 33 769 A1 was prepared from 4,4'-diaminodiphenylmethane and 3- (2-methylpropanecarbonyloxy) 2,2-dimethylpropanal. It formed an amber-colored, intense-smelling oil with a viscosity of 2040 mPa-s at 20 0 C, which was honey-like at 5 0 C.
- Polymer P-1 In a screw cap polypropylene cup, Polymer P-1, whose preparation is described below, was added to the ingredients listed in Table 1 using a centrifugal mixer (SpeedMixer TM DAC 150, FlackTek Inc, 1 min at 2500 rpm) specified parts by weight to a homogeneous mass. For Comparative Example 19, the polymer P-1 and the dialdimine A-8 prior to mixing at 80 0 C were heated so that the dialdimine A-8 was present in liquid form. Polymer P-1 was prepared as follows:
- the ratio between the isocyanate groups and the aldimino groups is 1.0 / 0.7.
- Table 1 Composition of Examples 12 to 18 and Comparative Examples 19 to 21. a 5% by weight of salicylic acid in dioctyl adipate.
- compositions thus obtained were tested for viscosity,
- Storage stability skinning time, curing rate, blistering, mechanical properties and resistance to thermal stress tested. Storage stability was determined by the change (increase) in viscosity during storage in the heat. For this purpose, the composition was stored in the sealed tube in the oven at 60 0 C and measured the viscosity at 20 0 C a first time after 6 hours and a second time after 7 days of storage. The storage stability results from the percentage increase of the second viscosity value compared to the first.
- the time to cure the composition was used.
- the time to cure was determined by pouring the composition as a 5 mm thick film into a PTFE mold, storing it in standard climate, and periodically raising the film edge to determine the time in days that it took for the film to set For the first time, it was possible to detach from the mold without residue.
- Bubble formation was assessed qualitatively by the amount of bubbles that occurred during cure of the composition.
- the space temperature-warm composition stored for 6 hours at 60 ° C. in a flat PTFE mold was poured into a film of about 2 mm thickness and cured for 7 days under standard conditions.
- Dumbbells with a length of 75 mm, with a web length of 30 mm and a web width of 4 mm, were punched out of the film and tested according to DIN EN 53504 at a drawing speed of 200 mm / min.
- a part of the dumbbells was in the oven for 7 days at 100 0 C before measuring the mechanical properties and then Stored for 24 hours in standard climate to test the resistance to thermal stress of the cured composition. The results of the tests are shown in Table 2.
- Table 2 Properties of Examples 12 to 18 and Comparative Examples 19 to 21.
- b ⁇ viskositat [(viscosity after 7 d / viscosity after 6h) - 1] x 100%.
- Polymer P-2 the preparation of which is described below, using a centrifugal mixer (Speed Mixer TM DAC 150, FlackTek Inc, 1 min at 2500 rpm) with the ingredients listed in Table 3 in the proportions by weight to a homogeneous mass mixed.
- Polymer P-2 was prepared as follows:
- the ratio between the isocyanate groups and the aldimino groups is 1.0 / 0.7.
- Table 3 Composition of Examples 22 to 26 and Comparative Examples 27 and 28. a 5% by weight of salicylic acid in dioctyl adipate.
- compositions thus obtained were tested as described for Example 12 for viscosity, storage stability, skinning time, blistering, mechanical properties and resistance to thermal stress. The results of the tests are shown in Table 4.
- Table 4 Properties of Examples 22 to 26 and Comparative Examples 27 and 28 a in Pa s, after storage at 60 0 C, measured at 20 0 C.
- b ⁇ viskostician [(viscosity after 7 d / viscosity after 6h) - 1] * 100%.
- ° upper number test after curing in standard climate; lower number: test after thermal load of the cured material (7d / 100 0 C).
- Polymer P-3 whose preparation is described below, by means of a Centrifuge mixer (SpeedMixer TM DAC 150, FlackTek Inc, 1 min at 2500 rpm) with the ingredients listed in Table 5 in the indicated parts by weight to a homogeneous mass.
- a Centrifuge mixer SpeedMixer TM DAC 150, FlackTek Inc, 1 min at 2500 rpm
- the polymer P-3 was prepared as follows:
- polyoxypropylene diol (Acclaim ® 4200 N, Bayer; OH number 28.5 mg KOH / g), 1 180 g of polyoxyethylene polyoxypropylene triol (Caradol ® MD34-02, Shell; OH number 35.0 mg KOH / g) and 230 g isophorone diisocyanate (IPDI; Vestanat ® IPDI, Degussa) were reacted at 80 0 C in the presence of 0.01 g of dibutyltin dilaurate to form an NCO-terminated polyurethane polymer having a free isocyanate group content of 10.2% by weight.
- IPDI isophorone diisocyanate
- the ratio between the isocyanate groups and the aldimino groups is 1 .0 / 0.7 for all examples.
- Table 5 Composition of Examples 29 and 30 and Comparative Example 31. a 5% by weight of salicylic acid in dioctyl adipate. b 5% by weight of dibutyltin dilaurate in diisodecyl phthalate.
- compositions thus obtained were tested as described for Example 12 for viscosity, storage stability, skinning time, blistering, mechanical properties and resistance to thermal stress. The results of the tests are shown in Table 6.
- Table 6 Properties of Examples 29 and 30 and Comparative Example 31 a in Pa-s, storage at 6O 0 C.
- b ⁇ VIS kos ⁇ tat [(viscosity after 7 d / viscosity after 6h) - 1] x 100%.
- nm not measurable, because decomposes.
- compositions of Examples 29 to 30 containing dialdimines of formula (I) derived from aromatic diamines over the composition of Comparative Example 31 containing no dialdimine have a shorter skinning time, a higher mechanical strength and have better resistance to thermal stress.
- the compositions according to the invention have very good storage stability and cure without bubbles.
- Polymer P-4 was prepared as follows:
- the ratio between the isocyanate groups and the aldimino groups is 1.0 / 0.5 for all examples.
- Table 7 Composition of elastic adhesives.
- DIDP diisodecyl phthalate
- d 3-glycidoxypropyl triethoxysilane (Dynasylan ® GLYEO, Degussa).
- the elastic adhesives thus obtained were tested for application properties, skin formation time, curing rate, mechanical properties and resistance to thermal and hydrolytic stress.
- the stability and the thread tension were used.
- the adhesive was applied by means of a caulking gun via a triangular nozzle as a horizontally extending triangular bead with a base diameter of 8 mm and a height (distance of the triangular tip from the base) of 20 mm on a vertical piece of cardboard. After 5 minutes, it was measured how far the tip had descended, ie moved away from the original position in the middle of the triangular caterpillar.
- the time was used to cure the adhesive.
- the time to cure was examined by passing the adhesive by means of a caulking gun through a round tip (10 mm opening) as a horizontal, free-hanging cone with a length of about 50 mm and a thickness in the middle of 30 mm on a wall-mounted Piece cardboard box was left for 7 days in standard climate, then cut vertically in the middle and the thickness of the cured adhesive layer was measured at a scale.
- the Shore A hardness was determined according to DIN 53505 on test specimens cured for 14 days under standard conditions.
- Tensile strength, elongation at rupture and modulus of elasticity were determined on films cured in standard climates for 7 days at a layer thickness of 2 mm in the same manner as in Example 12.
- dumbbells were stored for 7 days under "cataplasmic" conditions (70 ° C./100% relative atmospheric humidity) and then for 24 hours under standard conditions, whereupon the mechanical properties were tested as described The remaining properties were tested as described in Example 12.
- Table 8 Properties of elastic adhesives. a Upper figure: test after curing in standard climate; average number: test after thermal stress of the material cured in the standard climate (7d / 100 0 C); lower number: test after hydrolytic load ("cataplasm") of the material cured in standard climates (7d / 70 ° C, 100% RH).
- the respective components according to Table 9 were processed in the specified parts by weight in a vacuum mixer with exclusion of moisture to form a homogeneous paste, this filled immediately into an internally painted aluminum cartridge and the cartridge hermetically sealed.
- the polymer P-2 and A-8 dialdimine before mixing to 80 0 C were heated so that the dialdimine A-8 was present in liquid form.
- the thickener was prepared as follows:
- DIDP diisodecyl phthalate
- the ratio between the isocyanate groups and the aldimino groups is 1.0 / 0.65 for all examples.
- Table 9 Composition of elastic sealants.
- sealants were qualitatively tested for stickiness. This was done by pressing on the curing Shore A test specimen with one's thumb, one or three days after its application, and then determining how long the specimen stuck to the thumb when lifting the hand. Tack was then seen to be high (specimen sticking for more than 3 seconds), medium (specimen sticking for about 3 seconds), small (specimen sticking for 1 to 2 seconds) and none (specimen sticking for less than 1 second) ) rated.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Polyurethanes Or Polyureas (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Sealing Material Composition (AREA)
- Epoxy Resins (AREA)
- Paints Or Removers (AREA)
Abstract
Description
Claims
Priority Applications (1)
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EP08849259.0A EP2220034B1 (en) | 2007-11-13 | 2008-11-13 | Aromatic aldimines and polyurethane compositions which contain aldimine |
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EP07120595 | 2007-11-13 | ||
EP08849259.0A EP2220034B1 (en) | 2007-11-13 | 2008-11-13 | Aromatic aldimines and polyurethane compositions which contain aldimine |
PCT/EP2008/065431 WO2009062985A1 (en) | 2007-11-13 | 2008-11-13 | Aromatic aldimines and polyurethane compositions which contain aldimine |
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US (1) | US8668986B2 (en) |
EP (1) | EP2220034B1 (en) |
JP (1) | JP2011503143A (en) |
CN (1) | CN101883753B (en) |
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EP1923445B1 (en) * | 2006-11-17 | 2009-06-24 | Sika Technology AG | Polyaldimine containing moisture curable hotmelt adhesive composition |
EP2220034B1 (en) | 2007-11-13 | 2015-12-23 | Sika Technology AG | Aromatic aldimines and polyurethane compositions which contain aldimine |
EP2072551A1 (en) * | 2007-12-21 | 2009-06-24 | Sika Technology AG | Primer compound containing aldimine |
EP2468759A1 (en) * | 2010-12-17 | 2012-06-27 | Sika Technology AG | Secondary Aminosilanes |
KR101928117B1 (en) * | 2011-03-14 | 2018-12-11 | 바스프 코팅스 게엠베하 | Polyurethane coating material composition, multistage coating methods using these coating material compositions, and also the use of the coating material composition as clearcoat material and pigmented coating material, and application of the coating method for automotive refinish and/or for the coating of plastics substrates and/0r of utility vehicles |
EP2592100A1 (en) * | 2011-11-10 | 2013-05-15 | Sika Technology AG | Curing agent for epoxy resin coatings |
EP2706073A1 (en) * | 2012-09-11 | 2014-03-12 | Sika Technology AG | Two-component polyurethane composition |
JP5996985B2 (en) * | 2012-09-24 | 2016-09-21 | 日東電工株式会社 | Manufacturing method of pressure-sensitive adhesive sheet, and pressure-sensitive adhesive sheet obtained by the manufacturing method |
CN102875776B (en) * | 2012-11-01 | 2013-11-06 | 许甫民 | Raw material and preparation method of modified rubber-plastic rain grate |
EP2803685A1 (en) * | 2013-05-15 | 2014-11-19 | Sika Technology AG | Two-component polyurethane composition |
EP2966103A1 (en) * | 2014-07-09 | 2016-01-13 | Sika Technology AG | Liquid-applied waterproofing membrane for roofs |
CN110023367B (en) * | 2016-10-18 | 2022-04-15 | 陶氏环球技术有限责任公司 | Glass adhesion primer containing aldimine |
EP3336114A1 (en) * | 2016-12-15 | 2018-06-20 | Sika Technology Ag | Two-component polyurethane sealant for application at low temperature |
CN108530593A (en) * | 2018-03-29 | 2018-09-14 | 北京东方雨虹防水技术股份有限公司 | A kind of mono-component polyurethane latent curing agent and preparation method thereof and water-repellent paint |
JP6827977B2 (en) * | 2018-08-06 | 2021-02-10 | 第一工業製薬株式会社 | Two-component curable adhesive |
US20220363803A1 (en) * | 2019-08-15 | 2022-11-17 | Sika Technology Ag | Moisture-curable polyurethane composition with reduced surface tackiness |
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US3881043A (en) * | 1971-06-21 | 1975-04-29 | Ppg Industries Inc | Laminated safety windshields |
DE3133769A1 (en) | 1981-08-26 | 1983-03-10 | Basf Ag, 6700 Ludwigshafen | Moisture-curing, one-component polyurethane system with a long shelf life |
US4469831A (en) * | 1981-08-26 | 1984-09-04 | Basf Aktiengesellschaft | Moisture-curing, storage stable, single-component polyurethane systems |
DE3607996A1 (en) * | 1986-03-11 | 1987-09-17 | Basf Ag | MOISTURE-HARDENING, STORAGE-STABLE, 1-COMPONENT POLYURETHANE SYSTEMS AND THEIR USE |
DE3624924A1 (en) | 1986-07-23 | 1988-01-28 | Basf Ag | MOISTURE-HARDENING, STORAGE-STABLE, 1-COMPONENT POLYURETHANE SYSTEMS AND THEIR USE |
JP3283301B2 (en) | 1992-09-09 | 2002-05-20 | 三井化学株式会社 | Reactive hot melt adhesive composition |
JP3160230B2 (en) | 1996-09-25 | 2001-04-25 | 三洋化成工業株式会社 | Hot-melt improver and hot-melt resin composition |
JP3717282B2 (en) * | 1997-08-19 | 2005-11-16 | 三井化学株式会社 | One-part moisture-curing urethane composition |
US5955199A (en) | 1997-09-26 | 1999-09-21 | Ashland Inc. | Imine-containing curative for two component polyurethane structural adhesives |
EP1384709A1 (en) | 2002-07-26 | 2004-01-28 | Sika Technology AG | Polyaldimines |
EP1384735A1 (en) | 2002-07-26 | 2004-01-28 | Sika Technology AG | Polyaldimine containing polyurethane composition |
EP1329469A1 (en) | 2002-01-18 | 2003-07-23 | Sika Schweiz AG | Polyurethane composition |
US6803412B2 (en) | 2003-03-13 | 2004-10-12 | H.B. Fuller Licensing & Financing Inc. | Moisture curable hot melt sealants for glass constructions |
JP4578876B2 (en) * | 2004-07-22 | 2010-11-10 | セメダイン株式会社 | Moisture curable polyurethane sealant composition |
EP1770107A1 (en) | 2005-09-30 | 2007-04-04 | Sika Technology AG | Polyurethane composition curable by humidity |
EP2220034B1 (en) | 2007-11-13 | 2015-12-23 | Sika Technology AG | Aromatic aldimines and polyurethane compositions which contain aldimine |
-
2008
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- 2008-11-13 CN CN200880118487.6A patent/CN101883753B/en not_active Expired - Fee Related
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- 2008-11-13 WO PCT/EP2008/065431 patent/WO2009062985A1/en active Application Filing
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US8668986B2 (en) | 2014-03-11 |
EP2220034B1 (en) | 2015-12-23 |
WO2009062985A1 (en) | 2009-05-22 |
US20100255314A1 (en) | 2010-10-07 |
BRPI0820511A2 (en) | 2015-06-16 |
CN101883753B (en) | 2014-06-04 |
CN101883753A (en) | 2010-11-10 |
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